Organic Chemistry

Learn the toughest concepts covered in Organic Chemistry with step-by-step video tutorials and practice problems by world-class tutors.

1. A Review of General Chemistry

Atomic Structure

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Been awhile since Chem 1? Let’s cover some of the essentials from general chemistry that you’ll need for this course. 

Recap of Protons and Neutrons

1

concept

The difference between atomic numbers and atomic mass.

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Content

Atomic Number: Number of protons in the atom.

Atomic Mass: Total number of protons and neutrons in the atom. 

Isotopes: Atoms that have the same atomic number but differing atomic mass.

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2

example

Understanding the hydrogen isotopes.

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Recap of Electrons

3

concept

Shells, orbitals and types of ions

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  • Shell: Region of space that electrons orbit around the nucleus in.
  • Orbital: Region of space within a shell with exactly enough space for two electrons. 
  • Ion: An atom that has an unequal number of electrons and protons.  
4

example

Understanding the hydrogen ions.

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The Three Principles of Electron Configuration

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5

concept

Three rules about orbitals you need to know.

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6
Problem

PRACTICE:Determine the number of protons, neutrons and electrons in the following atoms.

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Problem

PRACTICE:Determine the number of protons, neutrons and electrons in the following atoms.

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Problem

PRACTICE:Determine which of the three principles of electron configuration is being broken in the electron diagrams below.

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Problem

PRACTICE:Determine which of the three principles of electron configuration is being broken in the electron diagrams below.